well my mother say that I lake experience she says for someone who wasn't taught it and have near zero time doing it I am exceptionally talented at it she says my main problems are the lake of time and motivation to try it and to learn it she even says that I am like shikamaru from naruto very lazy ,talented and smart
as for the light it well be harder making it apparent without it ruining your work but I think the trick is by using a close yet lighter shade of color for it and to tell you the truth I kind of felt your emotion through this work of yours it was felled with love yet I sensed allot of frustration at not getting it exactly like you wanted in your mind.